Focus
type: MusicGroup
genre: disco polo
popularity: 13
followers: 5528
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0xf47006d2cf439a52d0e94a38dfde6fcf0756599a4c1716207fa3c47642f7f951
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 953696
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/953696
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/71902312-d037-4ed7-97fa-d5b1ea173cb5.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/71902312-d037-4ed7-97fa-d5b1ea173cb5.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/71902312-d037-4ed7-97fa-d5b1ea173cb5
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-14T21:45:57Z
additional property: OTSCanonicalRecord
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf47006d2cf439a52d0e94a38dfde6fcf0756599a4c1716207fa3c47642f7f951. Chain 2 (Bitcoin): anchored in block 953696 (2026-06-14T21:45:57Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/71902312-d037-4ed7-97fa-d5b1ea173cb5.json and https://artists.proofprofile.net/proofs/artist/71902312-d037-4ed7-97fa-d5b1ea173cb5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-14T21:45:57Z
album: Szał Ciał
  type: MusicAlbum
  date published: 2000-01-01
album: Tydzień
  type: MusicAlbum
  date published: 2000-01-01
  track: Tydzień
    type: MusicRecording
    duration: PT3M27S
    duration ms: 207307
    explicit: false
    by artist: Focus
    in album: Tydzień
      type: MusicAlbum
      date published: 2000-01-01
    genre: disco polo
    isrc code: PLH751300338
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-05T15:07:44+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xa9a8fef74857c2bf1fb06c39e209397bd36bf39c6d58a7db005701988602e68f
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 956826
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/956826
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLH751300338
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-05T19:27:56Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9a8fef74857c2bf1fb06c39e209397bd36bf39c6d58a7db005701988602e68f. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLH751300338.
      date published: 2026-07-05T19:27:56Z
    audio: Tydzień
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 133.968
      additional property: Musical Key
        type: PropertyValue
        value: 11
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 0
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.682
      additional property: Energy
        type: PropertyValue
        value: 0.973
      additional property: Speechiness
        type: PropertyValue
        value: 0.034
      additional property: Acousticness
        type: PropertyValue
        value: 0.022
      additional property: Instrumentalness
        type: PropertyValue
        value: 0
      additional property: Liveness
        type: PropertyValue
        value: 0.091
      additional property: Valence (Positivity)
        type: PropertyValue
        value: 0.97
      additional property: Loudness (dB)
        type: PropertyValue
        value: -5.334
      additional property: Key Name
        type: PropertyValue
        value: B
      additional property: Mode Name
        type: PropertyValue
        value: Minor
album: List na do widzenia (Radio Edit)
  type: MusicAlbum
  date published: 2016-11-10
album: Ona z miliona (Radio Edit)
  type: MusicAlbum
  date published: 2018
album: Nigdy nie żałuj (Radio Edit)
  type: MusicAlbum
  date published: 2018
album: Lato nad Bałtykiem (Radio Edit)
  type: MusicAlbum
  date published: 2018
  track: Lato nad Bałtykiem - Radio Edit
    type: MusicRecording
    duration: PT3M13S
    duration ms: 193109
    explicit: false
    by artist: Focus
    in album: Lato nad Bałtykiem (Radio Edit)
      type: MusicAlbum
      date published: 2018
    genre: disco polo
    isrc code: PLG231800065
    additional property: CopyrightID
    additional property: CopyrightStatus
      type: PropertyValue
      value: registered
    additional property: CopyrightRegisteredAt
      type: PropertyValue
      value: 2026-07-17T08:02:23+00:00
    additional property: CopyrightChainExplorerURL
      type: PropertyValue
      value: https://explorer.copyrightchains.com/tx/0xad66c2b2a98e9b926440365f6a31ece727e33b6f94a5c0827a934dae2ab3fa0c
    additional property: OTSHash
    additional property: OTSBitcoinBlock
      type: PropertyValue
      value: 958384
    additional property: OTSBitcoinBlockVerifyURL
      type: PropertyValue
      value: https://blockstream.info/api/block-height/958384
    additional property: OTSVerificationAPI
      type: PropertyValue
      value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLG231800065
    additional property: OTSTimestamp
      type: PropertyValue
      value: 2026-07-17T08:27:02Z
    additional property: OTSVerifyInstructions
      type: PropertyValue
      value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
    subject of: OpenTimestamps Proof of Existence
      type: DigitalDocument
      encoding format: application/vnd.opentimestamps.ots
      description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad66c2b2a98e9b926440365f6a31ece727e33b6f94a5c0827a934dae2ab3fa0c. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLG231800065.
      date published: 2026-07-17T08:27:02Z
    audio: Lato nad Bałtykiem - Radio Edit
      type: AudioObject
      additional property: Tempo (BPM)
        type: PropertyValue
        value: 144.98
      additional property: Musical Key
        type: PropertyValue
        value: 0
      additional property: Mode (Major/Minor)
        type: PropertyValue
        value: 1
      additional property: Time Signature
        type: PropertyValue
        value: 4
      additional property: Danceability
        type: PropertyValue
        value: 0.839
      additional property: Energy
        type: PropertyValue
        value: 0.785
      additional property: Speechiness
        type: PropertyValue
        value: 0.109
      additional property: Acousticness
      additional property: Instrumentalness
      additional property: Liveness
      additional property: Valence (Positivity)
      additional property: Loudness (dB)
      additional property: Key Name
      additional property: Mode Name
album: Lato nad Bałtykiem
album: Piękny i boski Zbyszek Perkowski
album: Nigdy nie żałuj
album: Inteligentna (Radio Edit)
album: Pinokio (Radio Edit)
album: Letnia miłość (Radio Edit)
album: Pinokio
album: Chory na miłość (Radio Edit)
album: Kawalerek (Radio Edit)
album: Maska (Radio Edit)
album: Chciałbym (Radio Edit)
album: Zakochać się w Tobie do reszty
album: Czemu płaczesz góraleczko (Radio Edit)
album: Ogień (Radio Edit)
album: Rozwódka (Radio Edit)
album: Chcę powiedzieć (Radio Edit)
album: Nina (Radio Edit)
album: Brodacze (Radio Edit)
album: Zapamiętam uśmiech twój na zawsze (Radio Edit)

Acousticness
type: PropertyValue
value: 0.083

Instrumentalness
type: PropertyValue
value: 0.002

Liveness
type: PropertyValue
value: 0.911

Valence (Positivity)
type: PropertyValue
value: 0.961

Loudness (dB)
type: PropertyValue
value: -6.842

Key Name
type: PropertyValue
value: C

Mode Name
type: PropertyValue
value: Major

Lato nad Bałtykiem
type: MusicAlbum
date published: 2018-05-29

Piękny i boski Zbyszek Perkowski
type: MusicAlbum
date published: 2018-08-15

Nigdy nie żałuj
type: MusicAlbum
date published: 2018-12-28

Inteligentna (Radio Edit)
type: MusicAlbum
date published: 2019

Pinokio (Radio Edit)
type: MusicAlbum
date published: 2019

Letnia miłość (Radio Edit)
type: MusicAlbum
date published: 2019

Pinokio
type: MusicAlbum
date published: 2019-04-26

Chory na miłość (Radio Edit)
type: MusicAlbum
date published: 2020
track: Chory na miłość - Radio Edit
  type: MusicRecording
  duration: PT3M25S
  duration ms: 205285
  explicit: false
  by artist: Focus
  in album: Chory na miłość (Radio Edit)
    type: MusicAlbum
    date published: 2020
  genre: disco polo
  isrc code: PLG232000012
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-18T18:15:14+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0xb33788cf2b5af5b3f27be99080dac25583ef857be1a66d1189e4a2bef279ae3e
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 958601
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/958601
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLG232000012
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-18T19:27:02Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb33788cf2b5af5b3f27be99080dac25583ef857be1a66d1189e4a2bef279ae3e. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLG232000012.
    date published: 2026-07-18T19:27:02Z
  audio: Chory na miłość - Radio Edit
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 139.945
    additional property: Musical Key
      type: PropertyValue
      value: 0
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.683
    additional property: Energy
      type: PropertyValue
      value: 0.825
    additional property: Speechiness
      type: PropertyValue
      value: 0.06
    additional property: Acousticness
      type: PropertyValue
      value: 0.041
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.199
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.706
    additional property: Loudness (dB)
      type: PropertyValue
      value: -8.111
    additional property: Key Name
      type: PropertyValue
      value: C
    additional property: Mode Name
      type: PropertyValue
      value: Major

Kawalerek (Radio Edit)
type: MusicAlbum
date published: 2020

Chory na miłość (Radio Edit)
type: MusicAlbum
date published: 2021-01-13

Maska (Radio Edit)
type: MusicAlbum
date published: 2022

Chciałbym (Radio Edit)
type: MusicAlbum
date published: 2022

Zakochać się w Tobie do reszty
type: MusicAlbum
date published: 2022-05-06

Czemu płaczesz góraleczko (Radio Edit)
type: MusicAlbum
date published: 2023

Ogień (Radio Edit)
type: MusicAlbum
date published: 2023-10-26
track: Ogień - Radio Edit
  type: MusicRecording
  duration: PT3M20S
  duration ms: 200769
  explicit: false
  by artist: Focus
  in album: Ogień (Radio Edit)
    type: MusicAlbum
    date published: 2023-10-26
  genre: disco polo
  isrc code: PLI362745210
  additional property: CopyrightID
  additional property: CopyrightStatus
    type: PropertyValue
    value: registered
  additional property: CopyrightRegisteredAt
    type: PropertyValue
    value: 2026-07-03T07:52:18+00:00
  additional property: CopyrightChainExplorerURL
    type: PropertyValue
    value: https://explorer.copyrightchains.com/tx/0x9b3bc8138772f9a4dd148feaf401de77868ea24047f5f0d988e6b71f9ee1fa1d
  additional property: OTSHash
  additional property: OTSBitcoinBlock
    type: PropertyValue
    value: 956474
  additional property: OTSBitcoinBlockVerifyURL
    type: PropertyValue
    value: https://blockstream.info/api/block-height/956474
  additional property: OTSVerificationAPI
    type: PropertyValue
    value: https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLI362745210
  additional property: OTSTimestamp
    type: PropertyValue
    value: 2026-07-03T08:56:35Z
  additional property: OTSVerifyInstructions
    type: PropertyValue
    value: 1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
  subject of: OpenTimestamps Proof of Existence
    type: DigitalDocument
    encoding format: application/vnd.opentimestamps.ots
    description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b3bc8138772f9a4dd148feaf401de77868ea24047f5f0d988e6b71f9ee1fa1d. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PLI362745210.
    date published: 2026-07-03T08:56:35Z
  audio: Ogień - Radio Edit
    type: AudioObject
    additional property: Tempo (BPM)
      type: PropertyValue
      value: 130.011
    additional property: Musical Key
      type: PropertyValue
      value: 1
    additional property: Mode (Major/Minor)
      type: PropertyValue
      value: 1
    additional property: Time Signature
      type: PropertyValue
      value: 4
    additional property: Danceability
      type: PropertyValue
      value: 0.778
    additional property: Energy
      type: PropertyValue
      value: 0.89
    additional property: Speechiness
      type: PropertyValue
      value: 0.085
    additional property: Acousticness
      type: PropertyValue
      value: 0.521
    additional property: Instrumentalness
      type: PropertyValue
      value: 0
    additional property: Liveness
      type: PropertyValue
      value: 0.188
    additional property: Valence (Positivity)
      type: PropertyValue
      value: 0.675
    additional property: Loudness (dB)
      type: PropertyValue
      value: -5.018
    additional property: Key Name
      type: PropertyValue
      value: C#
    additional property: Mode Name
      type: PropertyValue
      value: Major

Rozwódka (Radio Edit)
type: MusicAlbum
date published: 2023-12-25

Chcę powiedzieć (Radio Edit)
type: MusicAlbum
date published: 2024-11-16

Nina (Radio Edit)
type: MusicAlbum
date published: 2025-01-07

Brodacze (Radio Edit)
type: MusicAlbum
date published: 2025-02-14

Zapamiętam uśmiech twój na zawsze (Radio Edit)
type: MusicAlbum
date published: 2025-04-10